Hoop-cutting machine



(Nomoax.)

C. E. CHITTENDBN. Hoop'VCutti-ng Machine,y

NQ.0 239,730. PatenfeqAprils,188|.;

N. PETERS, PHOTO-LITHOGRAPNER, WASHINGTON, D Ci` 'UNITED STATES i PATENT OFFICE.

oHAELEs E. GHITTENDEN, oE EooRsE, MICHIGAN.

HooP-cUrTlNG MACHINE.

i SPECIFICATION forming part of Letters Patent No. 239,730, dated April 5, 18181.

Application led October 18, 1880. (No model.)

To all whom it may concern:

Be it known that I, CHARLES E. GHITTEN- DEN, of Ecorse, in the county ot' Wayne and State of Michigan, haveiuvented an Improvenient in Hoop-Cutting Machines, ot' which the following is a specification.

My invention relates to hoop-cuttin g machines 5` and it consists in the peculiar process and construction of a machine for dividing a plank into hoop blanks, each of sufficient width to make two beveled hoops, by means of suitable cutters arranged alternately in two cutter-heads, which blanks are reversely inclined and received by guide-rolls and a plate having reversely-inclined corrugations, which securely hold the blanks and turn them into a diagonal position to be sawed into beveled hoops by a series ot' circular saws, as hereinafter more fully set forth.

Figure l is a longitudinal section of my improved machine. Fig. 2 is a vertical transverse section in front ofthe cutters. Fig. 3 is an end view of the cutter-headand cutters. Fig. 4 is an end elevation of the plank after it has been subdivided into cants, the dotted lines showing the lines of division or resawing, to make each cant into beveled hoops. Fig. 5 -is a similar View, showing the manner of presenting the cants to a series of vertical rotary saws, so that the cants will be converted into beveled hoops. Fig. 6 is a crosssection of 011e of the cutters d.

In the accompanying drawings, which form a part ot' thisspeciiication, A represents a suitable frame, adapted to carry the operating parts.

B are a pair of feed-rollers, between which the plank to be operated upon is i'ed to the cutters.

C C are two cutter-heads suitably journaled in or to the sides of the frame, the former below and the latter above the top of the frame, each operating upon opposite faces of the plank. These cutter-heads and the cutters ati planks. These cutters each taper from base to point, and. heilig concave in cross-section on their cutting faces, have two cutting edges, one on each side. To the intermediate faces of the cutter-head there are adjustably secured, as already described, the cutters e, the ends ot' which present, when in posit-ion, aseries of concave cutters designed to cut a series of convex surfaces, as shown in Fig. 2. The 6o cutters d are designed to cut nearly through the plank presented to them from below and above, and the two heads are so arranged that the cutters d ou the one head, when inoperation, will overlap the like cutters upon the other head-that is, the cutters ot one head, cutting from below, cut one side ot' the cant, while the cutters ot' the head cutting from above cut the opposite side of the cant, both sides being parallel. As these cutters do not 7o out clear'through the plank, others are re-` quired. These are the cutters e, which round off each corner of the cant, and in so doing complete the division of the plank.

The above description of the construction of the cutters by means of' which a plank is divided into a series of separate sla-ts or cants with rounded edges forms no part of this application, but will hereafter form the subjectl matter of a separate application for Letters 8o Patent.

D is a pair of tluted feed and guide rolls, the corrugations of which are such that they tit the rounded edges of the cants, as shown in Fig. 4. These rolls present in thc progressive movement of the cants such cants to the corrugated plate E, (or this may be a corrugated roller,) as shown in Fig. 5, adapted to turn such cants into the diagonal positions shown. A roller, F, the corrugationsof which 9o are precisely like thoseof the guide-plate E, a and set so that the wider tongues of the latter are presented opposite the narrower tongues of the former, assists in holding the cants in the last position described, and they are then presented to a series of `circular saws, G, set vertically on an arbor parallel to the top ofthe fra-me, by which the cants are resawed in vertical lines, said lines being diagonal to the parallel sides of the cants.

It will be observed that the rolls D,vp1ate E, and roll F have reversely-inclined corruga- IOO vide it diagonally and lengthwise, the whole operation being performed continuously in one machine, by mechanism substantially as described.

2. In a hoop-cutting'machine, the combination, with the cutter-heads G Gf, carrying cutters d e, arranged alternately in the cutter 2o heads, of the rolls D, having reversely-inclined corrugations, the extensions on one side lying opposite smaller extensions on the opposite side, substantially as described, and for the purpose set forth.

3. In a hoop-cutting machine, the combination, with the cutter-heads C C', carrying cutters d e, arranged alternately in the two cutter-heads, of the rolls D F and spreader-plate E, having reverscly-inclined corrugations, the extensions on one side lying opposite smaller extensions on the opposite side, and circular saws G, one for each cant, substantially as described, and for the purpose set forth.

CHARLES E. CHITTENDEN.

Witnesses:

H. S. SPRAGUE, GHAs. J. HUNT. 

